A and B started simultaneously and proceeded towards each other from places X and Y, respectively. After meeting each
other at a certain point on the way, A and B took 3.2 hours and 1.8 hours, to reach Y and X, respectively. If the speed of B was 12 km/h, then the speed (in km/h) of A was:

A

8

B

16

C

9

D

12